From "246 Caught in the Trap" (the first part), Haiyuan Ai was initially indifferent (perhaps hostile) to Lan, then reached out (247 episodes), and finally found her sister's shadow in Xiaolan (345 episodes).
Extended data:
The main plot about Xiaolan
For separated parents, Xiaolan often designs various schemes to reunite them. Although they failed every time, their relationship improved.
He is an excellent student in the school and seems to be better at liberal arts in his studies. There have also been cases of fatigue and illness due to taking care of study, extracurricular activities and housework.
The reasoning ability is influenced by parents and heart, and sometimes it points out details that Conan can't notice, which becomes the key to solving the case and also explains and assists Conan's reasoning. With the help of Xinyi, I have solved several accidents. There are also some incidents of independent thinking and cracking, but Xiaolan often lacks enough confidence in her own reasoning.
My best friend Garden is my classmate from elementary school to high school. They often go shopping together, watch movies, visit exhibitions and go to the seaside. Making phone calls is also common. I attach great importance to the friendship with the garden. I refused the invitation to go skiing with the garden, because I didn't have pocket money, and I didn't want to use the garden's money, because I wanted to be real friends with her, not financial transactions. I saved the garden several times in times of crisis and trusted each other very much.
Take care of Conan's daily life, call him "lovely brother" and tell him "I like Shinichi best". When I noticed Conan's amazing reasoning ability, I doubted his identity several times, but I was scared away by Conan.
Once, Conan began to doubt Conan's identity because he took off his glasses and looked like Shinichi. Until the stage performance of Didan High School Festival, he saw Xinyi and Conan (actually pretending to be Haiyuan Ai) appear at the same time, and told Xinyi that he had guessed that "Xinyi was involved in an incident and had to hide his identity, so Agasa Hiroshi made a medicine to make his body smaller."
Although Conan has always insisted that "Xiaolan should never be involved in events related to black organizations", actually Xiaolan has already had deep contact with the organization: On the night Xinyi disappeared, Xiaolan quickly thought about whether it was related to the two black people Xinyi had been paying attention to in the amusement park;
In TV 345, Xiaolan's appearance saved Haiyuan Ai and broke Belmore's plan. Later, in TV 867, Xiaolan Imber Modle called herself an "angel" and recalled. In TV 668, An Shi, an apprentice who began to learn from his father Richard Moore, was the undercover of the Japanese public security police who sneaked into the black organization, and had the code name of Bourbon, a member of the black organization.
The meeting with Akai Shuuichi in new york laid an important foundation for Xiaolan to provide Conan with information that he is an FBI agent. However, due to the protection of Conan and Belmore, Xiaolan did not know the existence of black organizations.
And two of a kind, childhood friends, has been waiting for Xinyi to come back. A year ago in new york, two people saved the murderer who fell from a building (Belmore pretended), and then they really fell in love with Shinichi, because Shinichi said that "people don't need a reason to save lives". After that, Xiaolan fainted with a fever. After waking up, she once forgot this opportunity, and then remembered it again.
Shinichi didn't know what he thought of himself before he confessed in London. He only confessed to Conan that he liked Shinichi. Whenever Yuanyuan and Ye made fun of Xiaolan's relationship with Xinyi, she would blush and deny it, but Xiaolan stopped denying it after a trip to London. During my study tour in Kyoto, I kissed my new cheek in response to my own wishes and formally issued a request for communication.
Baidu Encyclopedia-Detective Conan
Baidu Encyclopedia-Mao Lilan